The recipient of your email must have a copy of your Certificate in order to verify your signed email is legitimate. The easiest way of ensuring this is to automatically attach your Certificate to every outgoing email:

Encrypting an email ensures that only the recipient may view the email content and any attachments. Note: in order to encrypt an email for the recipient you must have the recipient's digital certificate, and their digital certificate must be assigned to the relevant entry in your address book

1. Compose your email and attach files as usual
2. Ensure the recipient has a Digital Certificate and you have assigned the Certificate to their entry in your OE address book
3. Click Encrypt
4. Click Send button